I love the art a lot. I do think the time is a bit short though, and I know you can upgrade it, but I feel you have to kill too many monsters to get the upgrade points required for it
thanks for playing and the comments , yeah I agree there the time is too short at the beginning but when you up grade to 30 seconds the game picks up pace if you unlock double jump then there is a secret that allows you to have practically infinite time !!!